SEGA today released the new promotion videos of the Valkyria Azure Revolution next to the new DEMO version for PS Vita in Japan.
Two new promotion videos published and the first one introducing the basic system of the game includes the battles, settings, briefing.

The second one includes the capital city, the main base where you can buy your extra items, equipment and you can accept the new missions. You can watch both of them in here (they are in Japanese):